Loom for weaving oriental and other knot-stitch carpets.



C. a; A. RENARD. LOOM FOR WEAVING ORIENTAL AND OTHER KNOT STITCH GARPETS. APPLICATION FILED JULY 23, 1909.

969,565. Patented sept. 6,1910.

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QM/imm( CHARLES RENARD AND ALBERT RENARD, '0F NONANCOURT, FRANCE.

LOOM FOR WEAVING ORIENTAL AND OTHER KNOT-STITCH CARPETS.

Specification of Letters Patent.

Patented sept. 6,1910.'

Application file d July 23, 1909. Serial No. 509,209.

To all whom 'it may concem: l,

Be it known that we, CHARLES RENARD and ALBERT RENARD, citizens of the Republic lof France, residing at Nonancourt,

(Eure,) France, have invented certain new and useful Improvements in Looms for Weaving Oriental and other Knot-Stitch Carpets, of which the following is a specilication.

In Patent No. 894,287 dated July 28, 1908 for our looms for manufacturing knot-stitch carpets we have described certain novel principles-which relate to the working of two warp t-hreads comprising successively their lift, their separatlon, their division, their raising, their being held at the disposition of the looping device and, finally, their tension. These various operations are effected owing to the intervention of a special device which is the divider, the said device serving also as a tightener by reason of its peculiar construction and its movements. The divider and the tightener are thus united in a single device.

Our present invention relates to a new Vmethod of operating this divider and tight ener, as Well as to slight modifications in the.

construction of the said device. These improvements and modifications will be fully understood by the following description with reference tothe accompanying drawing. In our former patent, the method of separating the` two warp threads consist-ed in lifting them together and separating them one from the other by the point which was provided at the bottom of the divider, which point was brought toward the separating reed-pin of these two threads. rIhe new means which constitutes one of our present improvements acts by lifting the two warp threads, not together, but one after the other, so as to cause a first thread to pass on one side of the divider and afterward, by the combination of the movement of the`latter and of the lifting of the second thread, to cause the latter to pass on the other side of the divider, which effects the separation of the two warp threads.

Figures 1, 2 and 3 are respectively a side elevat-ion and edge elevation and an end View of the divider; Figs. 4, 5 and of are diagrammaticl views in side elevation, plan, and end elevation, of the divider in its first position; Figs. 7, 8 and 9 are similar views with the divider in its second position; Figs. 10, 11 and l2are similar views with the divider in its third position; Figs. 13, 14 andl are similar views with the divider tin its fourth position.

Referring to the illustrated embodimen of the improved divider, it is thin on the lside and-wideon the face, its width determining the divisional distance between the two warp threads for the passage of the grippers of the looping` device, the dimensions of which var according to the thickness and length ofy the tufts to. be knotted. The shoulders have been placed farther down4 at its lower end.

'Ihe same letters of reference as were used in the specification of our former patent indicate the different parts of the divider.

The axis of rotation is the axis of the circular part 44, the shoulders are shown at 48 and 49. The angular part' 50 isdesigned to facilitate the bringing of the two warp threads `toward eachother, but it may remain straight. 38, isvthe batten and 118 is the reed. A lso the shoulders can be more or less arranged to form hooks and to better retain the warp threads. These are details of formation which are only secondary and which depend on the nature and size of the Warp threads employed.

First position: In the three figures 4, 5 and 6 the different pieces are shown in one position. yThe divider has oscillated on its center 43, it is lowered over the warp and at the same time, through its rotation in the direction of the arrow Fig. 4, its shoulders 48, 49 occupy an inclined position so that upon thelifting of a first thread a, d the latter will meet the said inclined part, it can consequently follow it without any impediment by sliding upon the line formed by the shoulders and, continuing its lift, it passes above the shoulder49.

Second position: Then the divider and the warp 4threads assume the positions shown in Figs. 7, 8 and 9; by rotating in the direction of thel arrow shown in Fig. 7, the divider again presents the line of its shoulders in an inclined position, but in the oppositedirection to that shown in Fi 4, so that the thread b, c, which is lifted 1n turn, meets the inclined part of the shoulders, also follows it by sliding, and continuing its lift, this second thread will pass above the shoulder 49.

Third position: In Figs. 10, 11 and 12, it will be seen that the total. lift of each of the two warp threads is accomplished, and that the latter are thus raised above the shoullders 48 and 49; the divider is then again actuated by its driving cam, returns in its movement of rotation in the direction of the arrow shown in Fig. 10 and stops and presents the line of its shoulders in a horizontal direction.

Fourth position: Finally (Figs. 13, 14 and 15) the divider is raised; by its width it has divided the two warp threads and, at 'the same time, by its shoulders 48, 49 it has lifted the two warp threads and it keeps them thus divided or separated one from `the other at the disposition of the looping device. Afterward all the complementary operations are accomplished which have been described in the specification of our said former patent for the lay of the divider and of the tightener an which assist in the formation of the knot-stitch.

Having now particularly described and ascertained the nature of our said invention and in what manner the same is to he performed, we declare that what we claim is 1. A loom for weaving knot-stitch carpets including in combination a divider, means for moving two warp threads vertically away from the plane of the other warps in two successive movements, and means for locating a portion of said divider alternateiy in oppositely inclined positions in the paths of vertical movement oi said two warp threads so as to force said threads succes sively in opposite lateral directions,

2. A loom for weaving knot-stitch carpets including in combination a thin divider with a width determining the distance of separaat op osite sides adapted to hold up gomeo tion of the warp threads, having shouiders threa s, and having a lower portion at an angle-to its length, and means for turning said divider to cause said lower portion to assume alternately o positely inclined positions in the paths o vertical movement of two warp threads, so as to force said threadsl successively in opposite lateral directions and to cause them to engage said shoulders.

3. A loom for weaving knot-stitch carpets including in combination a thin divider with its width determining the distance of separation of two warp threads, said divider standing with its longitudinal axis inclined to the vertical and having shoulders at opposite sides adapted to hold up the two separated warp threads, said divider having its lower portion perpendicular to its length, and means for turmng said divider alternately to positions in which said lower portion 1s oppositely inclined, so as to orce said warp threads successively in opposite lateral directions as they are lifted and to cause them to engage said shoulders.

In witness whereof we have hereunto signed our names this 1st day oi July, 1909, in the presence of subscribing witnesses.

CHARLES. RENARD. ALBERri.` RENARD. Witnesses as to Charles Renard:

MARIN VncHoN, Trios. N. Bnownn. Viitnesses as to A. Reynard:

l-. C. "Sonn,

GABRIEL BELLIARD.

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